A low primer alarm for a Lee Loadmaster. If one is not paying enough attention primers can run out causing headaches.
Controller is a Trinket M0. I don't know if its audible but there's a piezo buzzer added at the last alarm level. Uses built-in Dotstar LED for visible alarm status - blinking and colors. Alarm auto-resets when sufficient primers are added and ram is cycled.
YT videos: https://www.youtube.com/watch?v=hp7m0KxhbDg&list=PLDkvqC8YA6yOdvuijU1RltvW6fa008BHm&pp=gAQBiAQB
